void
piglit_init(int argc, char **argv)
{
GLuint tex, view;
GLuint buffer;
int i, j;
bool use_pbo = false;
bool pass = true;
#ifdef PIGLIT_USE_OPENGL
piglit_require_extension("GL_ARB_texture_view");
#else
piglit_require_extension("GL_OES_texture_view");
#endif
for (i = 1; i < argc; ++i) {
if (strcmp(argv[i], "pbo") == 0) {
piglit_require_extension("GL_ARB_pixel_buffer_object");
use_pbo = true;
}
}
/* build a texture with full miptree */
glGenTextures(1, &tex);
glBindTexture(GL_TEXTURE_2D, tex);
glTexStorage2D(GL_TEXTURE_2D, NUM_LEVELS,
GL_RGBA8, TEX_SIZE, TEX_SIZE);
if (use_pbo) {
glGenBuffers(1, &buffer);
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, buffer);
}
for (i=0; i < NUM_LEVELS; i++) {
int dim = TEX_SIZE >> i;
GLubyte *pixels = create_solid_image(dim, dim, 1, 4, i);
if (!pixels) {
printf("Failed to allocate image for level %d\n", i);
piglit_report_result(PIGLIT_FAIL);
}
if (use_pbo) {
glBufferData(GL_PIXEL_UNPACK_BUFFER, dim * dim * 4,
pixels, GL_STREAM_DRAW);
}
glTexSubImage2D(GL_TEXTURE_2D,
i, 0, 0, dim, dim,
GL_RGBA, GL_UNSIGNED_BYTE, use_pbo ? NULL : pixels);
free(pixels);
}
/* create a view to a subset of the layers */
glGenTextures(1, &view);
glTextureView(view, GL_TEXTURE_2D, tex, GL_RGBA8,
VIEW_MIN_LEVEL, VIEW_NUM_LEVELS, 0, 1);
if (!piglit_check_gl_error(GL_NO_ERROR))
piglit_report_result(PIGLIT_FAIL);
/* upload through the view */
glBindTexture(GL_TEXTURE_2D, view);
for (i = 0; i < VIEW_NUM_LEVELS; i++) {
int dim = TEX_SIZE >> (VIEW_MIN_LEVEL + i);
GLubyte *pixels = create_solid_image(dim, dim,
1, 4, i + NUM_LEVELS);
if (!pixels) {
printf("Failed to allocate image for view level %d\n", i);
piglit_report_result(PIGLIT_FAIL);
}
if (use_pbo) {
glBufferData(GL_PIXEL_UNPACK_BUFFER, dim * dim * 4,
pixels, GL_STREAM_DRAW);
}
glTexSubImage2D(GL_TEXTURE_2D, i, 0, 0, dim, dim,
GL_RGBA, GL_UNSIGNED_BYTE, use_pbo ? NULL : pixels);
free(pixels);
}
if (!piglit_check_gl_error(GL_NO_ERROR))
piglit_report_result(PIGLIT_FAIL);
/* bind the underlying texture and readback */
glBindTexture(GL_TEXTURE_2D, tex);
for (i = 0; i < NUM_LEVELS; i++) {
/* the levels inside the view should have been replaced.
* everything else should be untouched.
*/
float expected_color[4];
int dim = TEX_SIZE >> i;
int color_index = i;
if (i >= VIEW_MIN_LEVEL &&
i < VIEW_MIN_LEVEL + VIEW_NUM_LEVELS) {
color_index = i + NUM_LEVELS - VIEW_MIN_LEVEL;
}
printf("Testing level %d\n", i);
for (j = 0; j < 4; j++)
expected_color[j] = Colors[color_index][j] / 255.0f;
pass = piglit_probe_texel_rect_rgba(GL_TEXTURE_2D,
i, 0, 0, dim, dim,
expected_color) && pass;
}
if (use_pbo)
glDeleteBuffers(1, &buffer);
piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
}
/**
* Simple views of textures; test rendering with various texture view targets
*/
static bool
test_render_with_targets(GLenum target)
{
GLuint tex, newTex;
GLint width = 128, height = 64, depth = 4, levels = 8;
GLint l;
bool pass = true;
glUseProgram(0);
glGenTextures(1, &tex);
glBindTexture(target, tex);
switch (target) {
case GL_TEXTURE_1D:
glTexStorage1D(target, levels, GL_RGBA8, width);
height = 1;
depth = 1;
break;
case GL_TEXTURE_2D:
glTexStorage2D(target, levels, GL_RGBA8, width, height);
depth = 1;
break;
case GL_TEXTURE_3D:
case GL_TEXTURE_2D_ARRAY:
glTexStorage3D(target, levels, GL_RGBA8, width, height, depth);
break;
default:
/* only handle subset of legal targets */
piglit_report_result(PIGLIT_FAIL);
assert(!"Illegal target for test_render_with_targets()\n");
break;
}
/* load each mipmap with a different color texture */
for (l = 0; l < levels; l++) {
GLubyte *buf = create_solid_image(width, height, depth, 4, l);
if (buf != NULL) {
switch(target) {
case GL_TEXTURE_1D:
glTexSubImage1D(GL_TEXTURE_1D, l, 0, width,
GL_RGBA, GL_UNSIGNED_BYTE, buf);
break;
case GL_TEXTURE_2D:
glTexSubImage2D(GL_TEXTURE_2D, l, 0, 0, width,
height, GL_RGBA,
GL_UNSIGNED_BYTE, buf);
break;
case GL_TEXTURE_3D:
case GL_TEXTURE_2D_ARRAY:
glTexSubImage3D(target, l, 0, 0, 0, width,
height, depth, GL_RGBA,
GL_UNSIGNED_BYTE, buf);
break;
}
free(buf);
} else {
piglit_report_result(PIGLIT_FAIL);
assert(!"create_solid_image() failed\n");
}
if (width > 1)
width /= 2;
if (height > 1)
height /= 2;
if (depth > 1 && target == GL_TEXTURE_3D)
depth /= 2;
}
if (piglit_check_gl_error(GL_NO_ERROR) == GL_FALSE) {
printf("%s: Found gl errors prior to testing glTextureView\n",
TestName);
glDeleteTextures(1, &tex);
return false;
}
/* create view of texture and bind it to target */
glGenTextures(1, &newTex);
glTextureView(newTex, target, tex, GL_RGBA8, 0, levels, 0, 1);
glDeleteTextures(1, &tex);
pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
glActiveTexture(GL_TEXTURE0);
glBindTexture(target, newTex);
/* draw a quad/line using each texture mipmap level */
glTexParameteri(target, GL_TEXTURE_MIN_FILTER,
GL_NEAREST_MIPMAP_NEAREST);
glTexParameteri(target, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
for (l = 0; l < levels; l++) {
GLfloat expected[3];
int p;
glTexParameteri(target, GL_TEXTURE_BASE_LEVEL, l);
glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, l);
glClear(GL_COLOR_BUFFER_BIT);
switch (target) {
case GL_TEXTURE_1D:
glUseProgram(prog1D);
glUniform1i(tex_loc_1D, 0);
piglit_draw_rect_tex(-1.0, -1.0, 2.0, 2.0, 0.0, 0.0,
1.0, 1.0);
break;
case GL_TEXTURE_2D:
glEnable(target);
piglit_draw_rect_tex(-1.0, -1.0, 2.0, 2.0, 0.0, 0.0,
1.0, 1.0);
glDisable(target);
break;
case GL_TEXTURE_2D_ARRAY:
glUseProgram(prog2Darray);
glUniform1i(tex_loc_2Darray, 0);
draw_3d_depth(-1.0, -1.0, 2.0, 2.0, l);
break;
case GL_TEXTURE_3D:
glEnable(target);
draw_3d_depth(-1.0, -1.0, 2.0, 2.0, l);
glDisable(target);
break;
}
expected[0] = Colors[l][0] / 255.0;
expected[1] = Colors[l][1] / 255.0;
expected[2] = Colors[l][2] / 255.0;
p = piglit_probe_pixel_rgb(piglit_width/2, piglit_height/2,
expected);
piglit_present_results();
#if 0 /* debug */
printf("for level=%d, target=%s, expected color=%f %f %f\n",
l, piglit_get_gl_enum_name(target), expected[0],
expected[1], expected[2]);
sleep(1);
#endif
if (!p) {
printf("%s: wrong color for mipmap level %d\n",
TestName, l);
pass = false;
}
}
glDeleteTextures(1, &newTex);
return pass;
}
/**
* Texture views with varying minimum and number of levels, 2D only
*/
static bool
test_render_levels(void)
{
GLuint tex, new_tex;
GLint width = 4096, height = 4096, levels =13;
GLuint numLevels[] = {3,2,2,1};
GLint l;
int expectedLevel;
GLfloat expected[3];
int p;
bool pass = true;
glUseProgram(0);
glGenTextures(1, &tex);
glBindTexture(GL_TEXTURE_2D, tex);
glTexStorage2D(GL_TEXTURE_2D, levels, GL_RGBA8, width, height);
glEnable(GL_TEXTURE_2D);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
/* load each mipmap with a different color texture */
for (l = 0; l < levels; l++) {
GLubyte *buf = create_solid_image(width, height, 1, 4, l);
if (buf != NULL) {
glTexSubImage2D(GL_TEXTURE_2D, l, 0, 0, width, height,
GL_RGBA, GL_UNSIGNED_BYTE, buf);
free(buf);
}
if (width > 1)
width /= 2;
if (height > 1)
height /= 2;
}
pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
/* create view of texture with restricted levels and draw quad */
/* using smallest mip level in the view range which varies every loop */
for (l = 0; l < ARRAY_SIZE(numLevels); l++) {
glGenTextures(1, &new_tex);
glTextureView(new_tex, GL_TEXTURE_2D, tex, GL_RGBA8, l,
numLevels[l], 0, 1);
glBindTexture(GL_TEXTURE_2D, new_tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, levels-1);
glClear(GL_COLOR_BUFFER_BIT);
piglit_draw_rect_tex(-1.0, -1.0, 2.0/(float) (l+2),
2.0/ (float) (l+2), 0.0, 0.0, 1.0, 1.0);
expectedLevel = l + numLevels[l] - 1;
expected[0] = Colors[expectedLevel][0] / 255.0;
expected[1] = Colors[expectedLevel][1] / 255.0;
expected[2] = Colors[expectedLevel][2] / 255.0;
p = piglit_probe_pixel_rgb(piglit_width/(2*(l+3)),
piglit_height/(2*(l+3)), expected);
piglit_present_results();
#if 0
{ /* debug */
GLint param;
glGetTexParameteriv(GL_TEXTURE_2D,
GL_TEXTURE_BASE_LEVEL, ¶m);
printf("for view min level=%d base_level=%d exp color=%f %f %f\n",
l, param, expected[0], expected[1], expected[2]);
glGetTexParameteriv(GL_TEXTURE_2D,
GL_TEXTURE_MAX_LEVEL, ¶m);
printf("max_level=%d\n", param);
glGetTexParameteriv(GL_TEXTURE_2D,
GL_TEXTURE_VIEW_MIN_LEVEL, ¶m);
printf("view min_level=%d\n", param);
glGetTexParameteriv(GL_TEXTURE_2D,
GL_TEXTURE_VIEW_NUM_LEVELS, ¶m);
printf("view num_level=%d\n", param);
glGetTexParameteriv(GL_TEXTURE_2D,
GL_TEXTURE_IMMUTABLE_LEVELS,
¶m);
printf("immutable levels=%d\n", param);
sleep(1);
}
#endif
if (!p) {
printf("%s: wrong color for view min level %d, expectedLevel %d\n",
TestName, l, expectedLevel);
pass = false;
}
glDeleteTextures(1, &new_tex);
}
glDisable(GL_TEXTURE_2D);
glDeleteTextures(1, &tex);
return pass;
}
/**
* Views with varying minimum and number of layers 2D_ARRAY only
*/
static bool
test_render_layers(void)
{
GLuint tex, new_tex;
GLint width = 16, height = 16, layers = 8;
GLint l;
GLint numLayers[] = {7, 1, 2, 2};
int expectedLayer;
GLfloat expected[3];
int p;
bool pass = true;
glUseProgram(prog2Darray);
glUniform1i(tex_loc_2Darray, 0);
glGenTextures(1, &tex);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D_ARRAY, tex);
glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_BASE_LEVEL, 0);
glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MAX_LEVEL, 0);
glTexStorage3D(GL_TEXTURE_2D_ARRAY, 1, GL_RGBA8, width, height, layers);
/* load each array layer with a different color texture */
for (l = 0; l < layers; l++) {
GLubyte *buf = create_solid_image(width, height, 1, 4, l);
if (buf != NULL) {
glTexSubImage3D(GL_TEXTURE_2D_ARRAY, 0, 0, 0, l,
width, height, 1, GL_RGBA,
GL_UNSIGNED_BYTE, buf);
free(buf);
}
}
pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
/* create view of texture with restricted layers and draw quad */
/* using a single layer in the view range which varies every loop */
for (l = 0; l < ARRAY_SIZE(numLayers); l++) {
glGenTextures(1, &new_tex);
glTextureView(new_tex, GL_TEXTURE_2D_ARRAY, tex, GL_RGBA8,
0, 1, l, numLayers[l]);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D_ARRAY, new_tex);
glClear(GL_COLOR_BUFFER_BIT);
expectedLayer = l + numLayers[l] - 1;
draw_3d_depth(-1.0, -1.0, 2.0, 2.0, expectedLayer);
expected[0] = Colors[expectedLayer][0] / 255.0;
expected[1] = Colors[expectedLayer][1] / 255.0;
expected[2] = Colors[expectedLayer][2] / 255.0;
p = piglit_probe_pixel_rgb(piglit_width/2, piglit_height/2,
expected);
piglit_present_results();
#if 0
printf("for view min layer=%d expectedLayer=%d expected color=%f %f %f\n",
l, expectedLayer, expected[0], expected[1], expected[2]);
sleep(1);
#endif
if (!p) {
printf("%s: wrong color for view min layer %d, expectedLayer %d\n",
TestName, l, expectedLayer);
pass = false;
}
glDeleteTextures(1, &new_tex);
}
glDeleteTextures(1, &tex);
return pass;
}
void
piglit_init(int argc, char **argv)
{
GLuint tex, view, scratch;
GLuint fbo;
int i, j;
bool pass = true;
piglit_require_extension("GL_ARB_texture_storage");
piglit_require_extension("GL_ARB_texture_view");
/* build a 2d array texture; no mip levels */
glGenTextures(1, &tex);
glBindTexture(GL_TEXTURE_2D_ARRAY, tex);
glTexStorage3D(GL_TEXTURE_2D_ARRAY, 1,
GL_RGBA8, TEX_SIZE, TEX_SIZE, NUM_LAYERS);
for (i=0; i < NUM_LAYERS; i++) {
GLubyte *pixels = create_solid_image(TEX_SIZE, TEX_SIZE,
1, 4, i);
if (!pixels) {
printf("Allocation failure for layer %d\n", i);
piglit_report_result(PIGLIT_FAIL);
}
glTexSubImage3D(GL_TEXTURE_2D_ARRAY, 0,
0, 0, i, TEX_SIZE, TEX_SIZE, 1,
GL_RGBA, GL_UNSIGNED_BYTE, pixels);
free(pixels);
}
/* create a view of just one layer, as a non-array 2d texture */
glGenTextures(1, &view);
glTextureView(view, GL_TEXTURE_2D, tex, GL_RGBA8,
0, 1, VIEW_MIN_LAYER, VIEW_NUM_LAYERS);
if (!piglit_check_gl_error(GL_NO_ERROR))
piglit_report_result(PIGLIT_FAIL);
/* create scratch fbo, clear into it */
glGenFramebuffers(1, &fbo);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fbo);
glGenTextures(1, &scratch);
glBindTexture(GL_TEXTURE_2D, scratch);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, TEX_SIZE,
TEX_SIZE, 0, GL_RGBA, GL_UNSIGNED_BYTE, 0);
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
GL_TEXTURE_2D, scratch, 0);
if (glCheckFramebufferStatus(GL_DRAW_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE)
piglit_report_result(PIGLIT_FAIL);
glViewport(0, 0, TEX_SIZE, TEX_SIZE);
glClearColor(Colors[NUM_LAYERS][0] / 255.0f,
Colors[NUM_LAYERS][1] / 255.0f,
Colors[NUM_LAYERS][2] / 255.0f,
Colors[NUM_LAYERS][3] / 255.0f);
glClear(GL_COLOR_BUFFER_BIT);
/* glCopyTexSubImage2D out of the scratch fbo */
glBindFramebuffer(GL_READ_FRAMEBUFFER, fbo);
glReadBuffer(GL_COLOR_ATTACHMENT0);
glBindTexture(GL_TEXTURE_2D, view);
glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0,
0, 0, TEX_SIZE, TEX_SIZE);
if (!piglit_check_gl_error(GL_NO_ERROR))
piglit_report_result(PIGLIT_FAIL);
/* bind the underlying texture and readback */
glBindTexture(GL_TEXTURE_2D_ARRAY, tex);
for (i = 0; i < NUM_LAYERS; i++) {
/* only the layer in the view should have been touched. */
int color_index;
float expected_color[4];
color_index = i;
if (i >= VIEW_MIN_LAYER && i < VIEW_MIN_LAYER + VIEW_NUM_LAYERS)
color_index = i + NUM_LAYERS - VIEW_MIN_LAYER;
printf("Testing layer %d\n", i);
for (j = 0; j < 4; j++)
expected_color[j] = Colors[color_index][j] / 255.0f;
pass = piglit_probe_texel_volume_rgba(GL_TEXTURE_2D_ARRAY, 0,
0, 0, i, TEX_SIZE, TEX_SIZE, 1,
expected_color) && pass;
}
piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
}
static bool
test_format_lifetime(const struct format_desc desc0,
const struct format_desc desc1)
{
GLuint tex, viewTex[3];
GLint width = 32, w, levels = 6;
GLint l;
int bytes;
unsigned char *buffer0, *buffer1;
bool pass = true;
glGenTextures(1, &tex);
glBindTexture(GL_TEXTURE_1D, tex);
glTexStorage1D(GL_TEXTURE_1D, levels, desc0.storagefmt, width);
glGenTextures(3, viewTex);
glTextureView(viewTex[0], GL_TEXTURE_1D, tex, desc0.internalfmt, 0,
levels, 0, 1);
glTextureView(viewTex[1], GL_TEXTURE_1D, viewTex[0],
desc1.internalfmt, 0, levels, 0, 1);
pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
/* load each mipmap with a different color texture */
w = width;
bytes = (desc0.red + desc0.green + desc0.blue + desc0.alpha) / 8;
for (l = 0; l < levels; l++) {
GLubyte *buf = create_solid_image(width, 1, 1, bytes, l);
if (buf != NULL) {
glTexSubImage1D(GL_TEXTURE_1D, l, 0, w, desc0.imagefmt,
desc0.imagetype, buf);
free(buf);
} else {
piglit_report_result(PIGLIT_FAIL);
assert(!"create_solid_image() failed\n");
}
if (w > 1)
w /= 2;
}
#if 0 /* debug */
printf("fmt0=%s, fmt1=%s, strgfmt0=%s, gettype0=%s\n",
piglit_get_gl_enum_name(desc0.internalfmt),
piglit_get_gl_enum_name(desc1.internalfmt),
piglit_get_gl_enum_name(desc0.storagefmt),
piglit_get_gl_enum_name(desc0.gettype));
printf("bytes=%d, width=%d, viewTex[0]=%d, [1]=%d, [2]=%d\n",bytes,
width, viewTex[0], viewTex[1], viewTex[2]);
#endif
glDeleteTextures(1, &tex);
pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
/* compare view0 all level texels bytes to view1 texels bytes */
buffer0 = malloc(width * bytes);
buffer1 = malloc(width * bytes);
w = width;
for (l = 0; l < levels; l++) {
glBindTexture(GL_TEXTURE_1D, viewTex[0]);
glGetTexImage(GL_TEXTURE_1D, l, desc0.getfmt, desc0.gettype,
buffer0);
glBindTexture(GL_TEXTURE_1D, viewTex[1]);
glGetTexImage(GL_TEXTURE_1D, l, desc1.getfmt, desc1.gettype,
buffer1);
if (buffers_equal(buffer0, buffer1, w)) {
pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
printf("level %d texel mismatch view0 and view1, width=%d\n",
l, w);
printf("internal format0 %s, internal format1 %s\n",
piglit_get_gl_enum_name(desc0.internalfmt),
piglit_get_gl_enum_name(desc1.internalfmt));
pass = false;
}
if (w > 1)
w /= 2;
}
/* compare view1 base level texels to view2 after view0 and view1
deleted */
glBindTexture(GL_TEXTURE_1D, viewTex[1]);
glGetTexImage(GL_TEXTURE_1D, 0, desc1.getfmt, desc1.gettype, buffer1);
glTextureView(viewTex[2], GL_TEXTURE_1D, viewTex[0],
desc0.internalfmt, 0, 1, 0, 1);
pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
glDeleteTextures(2, viewTex);
glBindTexture(GL_TEXTURE_1D, viewTex[2]);
glGetTexImage(GL_TEXTURE_1D, 0, desc0.getfmt, desc0.gettype, buffer0);
if (buffers_equal(buffer0, buffer1, width)) {
pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
printf("Mismatched texels view1 and view2\n");
printf("internal format0 %s, internal format1 %s\n",
piglit_get_gl_enum_name(desc0.internalfmt),
piglit_get_gl_enum_name(desc1.internalfmt));
pass = false;
}
free(buffer0);
free(buffer1);
glDeleteTextures(1, &viewTex[2]);
return pass;
}